Can someone tell me the answer and explanation plz no wrong answers and just answer for points

Iwant to know what 3g+5h+4g-2h is my teacher is too selfish to tell us

Which undefined geometric term is described as a location on a coordinate plane that is designed by an ordered pair (x,y) ?

Amanager recorded the number of bicycles sold by his company each quarter. his projected sales after t years is given by the expression below. which of the following statements best describes the expression? a. the initial sales of 575 bicycles increases at the rate of 4% over 4 quarters. b. the initial sales of 575 bicycles increases at the rate of 18% over 4 years. c. the initial sales of 575 bicycles increases at the rate of 4% over t quarters. d. the initial sales of 575 bicycles increases at the rate of 18% over t years.